youpi-pg / YouPI-PG
A self-hosted UPI & COD payment gateway with zero per-transaction platform fees, universal JavaScript checkout integration, dynamic QR payments, WhatsApp OTP authentication, and automated payment verification.
youpi-pg / YouPI-PG
Open-Dev-Society / OpenStock
OpenStock is an open-source alternative to expensive market platforms. Track real-time prices, set personalized alerts, and explore detailed company insights — built openly, for everyone, forever free.
emmilco / us-tax-model
US federal income tax forms and instructions as cited, executable, machine-checkable data.
IamRamgarhia / Free-GST-Billing-Software
Free invoice builder & GST billing software for India. Make GST invoices, quotations, bills of supply and credit notes as PDF; GSTR-1/3B reports. Free invoice maker for shops, freelancers & small businesses. Free Tally alternative: open source, 100% offline, no signup, no limits.
InvoicePlane / InvoicePlane
A self-hosted open source application for managing your invoices, clients and payments.